Centrifugal pump.



' G. E. HANES 8; J, B. ALLER.

UENTRIFUGAL PUMP.

APPLIUATION FILED JUNE 7 1909,

975.232. Patented Nov. 8, 1910.

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IIVI/ENTOR a Gewyefl am;

17 1 5 z W ATTORNEYS WITNESSES 'rm: NORRIS PETERS co., wnsnmcrou, n. c.

s'rritis unrrn GEORGE E. HANES AND JOSEPH B. WALLER, OF KANSAS CITY,MISSOURI.

CENTBIFUGAL PUMP.

Specification of Letters Patent.

Patented Nov. 8, 1910.

To all whom it may concern:

Be it known that we, GEORGE E. HANES and JosErH B. WALLnn, both citizensof the United States, and residents of Kansas City, in the county ofJackson and State of Mia souri, have invented a new and ImprovedCentrifugal Pump, of which the following is a full, clear, and exactdescription.

The purpose of our invention is to provide a centrifugal pump that isextremely simple, that will raise a large volume of water from acomparatively deep well without requiring a foot valve, and operateeffectively with the expenditure of a minimum of power; and a furtherobject is to provide novel means for the pump, which will enable anadjustment of parts to decrease the lifting power thereof, and acorresponding decrease of power employed in operating the same.

The invention consists in the novel construction and combination ofparts, as is hereinafter described and defined in the ap pended claims.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views.

Figure 1 is a sectional view of the improved pump in position forservice; Fig. 2 is an enlarged sectional side view of a capvalve andadjacent parts of the pump. Fig. 3 is a reduced plan view of a cap valveand a segment block, ShOWiIlg one adjustment of said block; and Fig. 4is a similar view to Fig. 8, but showing a changed position of thesegment block.

In the drawings A represents a Well or other water supply for the pump,and 5 a horizontal beam that affords support for the pump.

A suction pipe 6 is vertically supported in the beam 5, and extends downin the well A. a suitable distance, having an open lower end that issubmerged in the water B contained in the well. Preferably the suctionpipe 6 is provided with a ball-bearing support 7, that is seated on thebeam 5, and adapts the pipe for free rotation, a pulley 8 that issecured on the suction pipe affording means for its rotatable connectionwith a source of power and motion by an endless belt (not shown). Uponthe beam 5 vertical posts 5 are erected of anequal height, and on saidposts an annular trough 9 is horizontally mounted, having suitabledimensions that adapt said trough for reception of water raised by thepump, a discharge pipe 9 extending from the trough to a selected pointfor discharge of the water. The suction pipe 6 extends above the troughat a point central thereto, and on the upper end of said pipe a T-shapedfitting 10 is mounted, the lateral and opposite outlets thereof eachreceiving a branch pipe 11, said pipes having equal diameter and length.Upon the true cylindrical body of each branch pipe 11, at or near theouter end thereof, a cap-valve 12 is slidably mounted, these similarvalves each consisting of a short cylindrical body, that is closed by afiat end wall 12 Seated in each cap valve body 12 is a rubber jointwasher 13, that is centrally perforated, and a corresponding perforationa is formed in the end wall 12 whereon the joint washer is seated. Uponeach branch pipe 11, at the outer end thereof, an adjustable ring 14 isscrewed, as is plainly shown for one of said pipes in Fig. 2, the bodyof the pipe being reduced in diameter and externally threaded for thereception of the interiorly-threaded ring, and it will be noted that theexterior of the sleeve-like ring or band 14 fits slidably in thecap-valve 12. The outer end of the ring or band 1 1 is beveled, givingit conical shape, thus producing a sharp inner edge I), that may beembedded in the washer 13 if the latter is moved toward the end of thebranch pipe 11. In each cap-valve 12 a lateral rectangular opening 0 isformed by the removal of a portion of the side wall thereof, theseopenings having suflicient area to permit the passage of water freelytherethrough, that has been lifted by the pump. Upon each ring 14 apreferably rubber segment block 15 is neatly fitted and secured by ascrew d, each segment block having such a length as will permit it tofit snugly at its ends in the opening 0, and is of a width that willconsiderably reduce the area of a respective opening 0 occupied by thesegment block.

As shown in Figs. 3 and 1, the screws (Z, for holding the segment blocks15 in place, are respectively inserted through a perforation that isnear one side edge of each segment block, and thence is screwed into atapped perforation in the adjacent band or ring 14. It will be notedthat if the side edge of each block 15 which is nearest to the screw dis disposed near the free edge 6, of a respective band 14, this willproject the wider portion of the block away from said edge, and adaptthe block 15'to restrict the outward sliding movement of the cap valve adegree equal to the difference in space between the screw (Z and theopposite side edges of the segment block, and obviously this is the casewith regard to each segment block and cap valve. travel of the capvalves by the adjustment of the segment blocks, as described,proportionally reduces the area of the discharge openings, thisadjustment being represented in Figs. 2 and 3. If it is desired toincrease the area of the discharge openings for the cap valves 12, thesegment blocks 15 are reversed in position by turning them endwise,which will dispose the side edges of said blocks that are farthest fromthe holes therein which receive the screws (1, toward and nearer to thejoint washers 13, which will permit the cap valves 12 to travel fartheraway from the edges 2') of the rings 14, and thus proportionallyincrease the area of the discharge openings in the cap valves.

In the perforation a in each cap valve end wall 12 and joint washer 13the threaded the priming pump,

body 16 of a coupling bolt is inserted outwardly therethrough, saidbolts each having a coniform'washer e thereon, that contacts with theexposed surface of a respective joint washer 13. Upon the inner end ofeach coupling bolt 16 a hook g is formed, with which the open links 72,of a chain 17 may be connected, said chains of equal length having theiropposite ends respectively secured upon the ends of a strong coiledspring 18. On the outer end portion of each coupling bolt 16 two jamnuts 2' are mounted, that engage respective end walls 12 of the capvalves 12, and when appropriate links of the chains 17 are respectivelyplaced upon the hooks g, the nuts may be adjusted so as to stretch thechains and draw the cap valves 12 into air-tight contact with the endsof the rings or bands 14.

To facilitate the operation of starting the pump, a valve 19 is placedin the T-fitting 10, and afiords means for connecting a portable suctionpump (not shown) with the pump that is to be started. By working air isexhausted from the improved pump and water lifted thereinto; the suctionpipe 6 and branch pipes 11 are now rapidly rotated by the application ofpower and rotary motion to the pulley 8,

which will cause an up-flow of water from the well and a discharge ofthe pumped water into the trough 9, and from the trough out of thedischarge pipe 9 it being understood that the pressure of water willforce the cap valves 12 away from the ends of the branch pipes 11. Ifthe pump is to be worked at its full capacity, the segment Therestriction of.

block 15 is removed, which will open the passage 0, the full areathereof, the elevation and discharge of water being also controlled bythe speed of rotation given to the pipe 6 and branches 11.

use of the pump, when the amount of water to be pumped is less than thefull capacity of the pump, as by cutting down the area of the dischargeopenings, the pump may be run with less speed and power than if workingat full capacity.

It will be noted that each coupling bolt 16 is transversely perforatedat m, near its outer end, this provision being made to facilitate theremoval of the cap-valves 12, or either of them, if the repair andremoval of the rings 14 are necessary. To this end the segment blocks 15are detached, and a wire rod is inserted through the perforation m ineach bolt 16; said wires are now bent to afford handles, that enable theapplication of draft strain upon the bolts and attached cap valves, thatmay thus be removed from the branch pipes 11 against stress of thespring 18. If preferred, the bolts 16 may be slackened sufficiently topermit the removal of the ends of the chains 17 from the hooks g,whereupon thecap valves will be released and they may be drawn off ofthe branch pipes.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent:

1. A centrifugal pump, embodying a vertical and rotatably-supportedsuction pipe having its lower end submerged in a water supply, twooppositely-extended branch pipes on the upper end of the suction pipe, acap-valve slidably mounted on the outer end of each branch pipe, saidsimilar capvalves each having a lateral opening therein,

a spring, flexible connections between the ends of the spring and thecap-valves, and means for rotating the suction pipe and branch pipes.

2. A centrifugal pump, embodying a vertically and rotatably-supportedsuction pipe, open at the lower end, the lower end being immersed in awater-supply, two oppositelydisposed branch pipes on the upper end ofthe suction pipe, a slidable cap-valve mounted on the outer end of eachbranch pipe, said cap valves each having a joint washer therein and alsoa lateral discharge opening, adjusting screw-bolts passing through theWasher and the end Wall of each cap-valve and having hooked ends, acoiled spring,

and a flexible connection between the respective ends of said spring andthe hooked ends of the adjusting bolts.

3. A centrifugal pump, comprising a suction pipe having at its upper endoppositely extending lateral branch pipes, a valve slidably mounted formovement toward and from the end of each of the branch pipes, forclosing the same, a spring intermediate the valve, a flexible connectionbetween each valve and the adjacent end of the spring, and means forrotating the suction pipe and the branch pipes.

4. A centrifugal pump, comprising a suction pipe, oppositely arrangedlateral branch pipes at one end of the suction pipe, a cap valveslidable on the end of each of said branch pipes for closing the sameand having a lateral opening, a yielding connection between the capvalves for normally retaining them closed, and means for varying theextent of the opening.

In testimony whereof We have signed our names to this specification inthe presence of tWo subscribing Witnesses.

GEORGE E. HANES. JOSEPH B. WALLER. WVitnesses J Essm PAYNE, FREDERICKGRIFFITH.

